Crystal Earphone (Piezoelectric) With Plug

The most sensitive earphones available.
SKU: CH905MP
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Piezoelectric Earphones

Piezoelectric Earphones, also known as Crystal Earphones, are the most sensitive earphones available. They are at least 10 times more sensitive than magnetic earphones, dynamic earphones, and electrostatic earphones. Sensitive earphones have a very high impedance, which is measured in ohms.

Crystal Earphones are commonly used in the construction of crystal radios and in science experiments such as listening to electric fish.

Includes a mono plug.

Key Features

  • The most sensitive earphones available.
  • High impedance for improved sound quality.
  • Can be used in science experiments.

Product Specifications:

Impedance:20K ohm
Capacity:15,000 pf
Sensitivity:57 dB at 1KHz
Frequency Range:200 ~ 8000 Hz
Operation Temperature:-20º to 60º Celsius
Cord:3ft twisted cable
Plug Type:Mono

Similar Products

  • High-impedance Crystal Earphones
  • Piezoelectric Headphones
  • Sensitive Electroacoustic Earphones
  • Crystal Radio Headphones
  • High-sensitivity In-Ear Earphones

Note: These are similar products, and each product is different, so research is required to find the best fit for your needs.


Perfect for those who need the most sensitive earphones available, such as those conducting science experiments or constructing crystal radios.

  • Availability: In Stock
  • Model: CH905MP
  • Brand: Mini-Science